VA259-17-R-1086-00004002.pdf
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VA259-17-R-1086 00004 23 09 23 DIRECT-DIGITAL CONTROL SYSTEM FOR HVAC (Revised 171205).pdf
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601-CSI-103, SITE PREP FOR 80-SLICE CT
OKCVAHCS, OKLAHOMA CITY, OK 73104
BID DOCUMENTS (Revised 12/05/2017)
CONSTRUCTION SPECIFICATIONS
23 09 23 - 1
SECTION 23 09 23
DIRECT-DIGITAL CONTROL SYSTEM FOR HVAC
PART 1 - GENERAL
1.1 DESCRIPTION
A. Provide (a) direct-digital control system(s) as indicated on the project documents, point list, interoperability tab les, drawings and as described in these specifications. Include a comple te and working direct-digital control system. Include all enginee ring, programming, controls and installation materials, installation l abor, commissioning and start-up, training, final project documentation and warranty.
1. All automation and control components shall be inte grated into the existing campus Johnson Controls Metasys and Automa ted Logic Controls
Client/server-base UI system communicating over an open protocol standards, Web Services technology network. This s ystem shall consist of all necessary hardware and all operating and applications software necessary to perform the control sequences of operation as called for in the Specifications and Drawings. All software required shall be turned over to the Owner ready for use inc luding all operation parameters, setpoints and schedules. The direct-digital control system(s) shall be native BACnet. All new workstations, controllers, devices, and components shall be liste d by BACnet
Testing Laboratories. All new workstations, contro ller, devices, and components shall be accessible using a Web browser interface and shall communicate exclusively using the ASHRAE Stan dard 135 BACnet communications protocol without the use of gateways , unless otherwise allowed by this Section of the technical specificat ions, specifically shown on the design drawings and specifically reque sted otherwise by the VA.
a. If used, gateways shall support the ASHRAE Standard 135 BACnet communications protocol.
b. If used, gateways shall provide all object properti es and read/write services shown on VA-approved interopera bility schedules.
2. The work administered by this Section of the techni cal specifications shall include all labor, materials, special tools, equipment, enclosures, power supplies, software, so ftware licenses, Project specific software configurations and databa se entries, 23 09 23 - 2 interfaces, wiring, tubing, installation, labeling, engineering, calibration, documentation, submittals, testing, ve rification, training services, permits and licenses, transporta tion, shipping, handling, administration, supervision, management, insurance, Warranty, specified services and items required for complete and fully functional Controls Systems.
3. The control systems shall be designed such that eac h mechanical system shall operate under stand-alone mode. The co ntractor administered by this Section of the technical speci fications shall provide controllers for each mechanical system. In the event of a network communication failure, or the loss of any o ther controller, the control system shall continue to operate indepe ndently. Failure of the ECC shall have no effect on the field contro llers, including those involved with global strategies.
B. Some products are furnished but not installed by th e contractor administered by this Section of the technical speci fications. The contractor administered by this Section of the tech nical specifications shall formally coordinate in writing and receive fr om other contractors formal acknowledgements in writing prior to submiss ion the installation of the products. These products include the follow ing:
1. Control valves.
2. Flow switches.
3. Flow meters.
4. Sensor wells and sockets in piping.
5. Terminal unit controllers.
C. Some products are installed but not furnished by th e contractor administered by this Section of the technical speci fications. The contractor administered by this Section of the tech nical specifications shall formally coordinate in writing and receive fr om other contractors formal acknowledgements in writing prior to submiss ion the procurement of the products. These products include the follow ing:
1. Factory-furnished accessory thermostats and sensors furnished with unitary equipment.
D. Some products are not provided by, but are neverthe less integrated with the work executed by, the contractor administered b y this Section of the technical specifications. The contractor admini stered by this
Section of the technical specifications shall forma lly coordinate in
23 09 23 - 3 writing and receive from other contractor’s formal acknowledgements in writing prior to submission the particulars of the products. These products include the following:
1. Fire alarm systems. If zoned fire alarm is require d by the project-specific requirements, this interface shall require multiple relays, which are provided and installed by the fire alarm system contractor, to be monitored.
2. Terminal units’ velocity sensors
3. Condenser water quality systems: condenser water hi gh- and low-parts hydrogen (pH) alarms.
4. Unitary HVAC equipment (split systemscontrols. The se include:
a. Status alarm.
5. The following systems have limited control (as indi vidually noted below) from the ECC:
a. Constant temperature rooms: temperature out of acce ptable range and status alarms.
b. Elevators: status alarms.
c. Building lighting systems: on/off and scene control .
E. Responsibility Table:
Work/Item/System Furnish Install Low Voltage Wiring
Line Power
Control system low voltage and communication wiring
23 09 23 23 09 23 23 09 23 N/A
Terminal units 23 23 N/A 26
Controllers for terminal units
23 09 23 23 23 09 23 16
LAN conduits and raceway 23 09 23 23 09 23 N/A N/A
Automatic dampers (not furnished with equipment)
23 09 23 23 N/A N/A
Automatic damper actuators 23 09 23 23 09 23 23 09 23 23 09 23
Manual valves 23 23 N/A N/A
Automatic valves 23 09 23 23 23 09 23 23 09 23
Pipe insertion devices and taps, flow and pressure stations.
23 23 N/A N/A
Thermowells 23 09 23 23 N/A N/A
23 09 23 - 4
Work/Item/System Furnish Install Low Voltage Wiring
Line Power
Current Switches 23 09 23 23 09 23 23 09 23 N/A
Control Relays 23 09 23 23 09 23 23 09 23 N/A
Smoke detectors 28 31 00 28 31 00 28 31 00 28 31 00
Fire/Smoke Dampers 23 23 28 31 00 28 31 00
Smoke Dampers 23 23 28 31 00 28 31 00
Fire Dampers 23 23 N/A N/A
Fire Alarm shutdown relay interlock wiring
28 28 28 26
Control system monitoring of fire alarm smoke control relay
28 28 23 09 23 28
Fan Coil Unit controls (not furnished with equipment)
23 09 23 23 09 23 23 09 23 26
F. This facility’s existing direct-digital control sys tem is manufactured by Johnson Controls. The contractor administered by this Section of the technical specifications shall observe the capabili ties, communication network, services, spare capacity of the existing c ontrol system and its ECC prior to beginning work.
1. Provide a new BACnet ECC, communications network, a nd controllers.
Provide a programmable internetworking gateway allo wing for real-time communication between the existing direct-digital c ontrol system and the new BACnet control system. Real-time communica tion shall provide all object properties and read/write services shown on VA-approved interoperability schedules. The contractor adminis tered by this
Section of the technical specifications shall provi de all necessary investigation and site-specific programming to exec ute the interoperability schedules.
G. This campus has standardized on an existing standar d ASHRAE Standard
135, BACnet/IP Control System supported by a presel ected controls service company. This entity is referred to as the “Control System
Integrator” in this Section of the technical specif ications. The
Control system integrator is responsible for ECC sy stem graphics and expansion. It also prescribes control system-speci fic commissioning/ verification procedures to the contractor administe red by this Section
23 09 23 - 5 of the technical specification. It lastly provides limited assistance to the contractor administered by this Section of t he technical specification in its commissioning/verification wor k.
1. The General Contractor of this project shall direct ly hire the
Control System Integrator in a contract separate fr om the contract procuring the controls contractor administered by t his Section of the technical specifications.
2. The contractor administered by this Section of the technical specifications shall coordinate all work with the C ontrol System
Integrator. The contractor administered by this Se ction of the technical specifications shall integrate the ASHRAE Standard 135, BACnet/IP control network(s) with the Control Syste m Integrator’s area control through an Ethernet connection provide d by the Control
System Integrator.
3. The contractor administered by this Section of the technical specifications shall provide a peer-to-peer network ed, stand-alone, distributed control system. This direct digital co ntrol (DDC) system shall include one portable operator terminal - lapt op, one digital display unit, microprocessor-based controllers, ins trumentation, end control devices, wiring, piping, software, and rela ted systems. This contractor is responsible for all device mounting a nd wiring.
4. Responsibility Table:
Item/Task Section 23 09 23 contactor
Control system integrator
VA
ECC expansion X ECC programming X Devices, controllers, control panels and equipment
X
Point addressing: all hardware and software points including setpoint, calculated point, data point(analog/ binary), and reset schedule point
X
Point mapping X Network Programming X ECC Graphics X Controller programming and sequences X Integrity of LAN communications X Electrical wiring X Operator system training X LAN connections to devices X LAN connections to ECC X IP addresses X
23 09 23 - 6
Overall system verification X Controller and LAN system verification X
H. The direct-digital control system shall start an d stop equipment, move
(position) damper actuators and valve actuators, an d vary speed of equipment to execute the mission of the control sys tem. Use electricity as the motive force for all damper and valve actuators, unless use of pneumatics as motive force is specifi cally granted by the
VA.
1.2 RELATED WORK
A. Section 21 05 11, Common Work Results for Fire S uppression.
B. Section 21 10 00, Water-Based Fire-Suppression S ystems.
C. Section 22 34 00, Fuel-Fired Domestic Water Heat ers.
D. Section 23 21 13, Hydronic Piping.
E. Section 23 31 00, HVAC Ducts and Casings.
F. Section 23 36 00, Air Terminal Units.
G. Section 23 74 13, Packaged, Outdoor, Central-Sta tion Air-Handling
Units.
H. Section 23 81 23, Computer-Room Air-Conditioners .
I. Section 26 05 11, Requirements for Electrical In stallations.
J. Section 26 05 21, Low-Voltage Electrical Power C onductors and Cables
(600 Volts and Below).
K. Section 26 05 26, Grounding and Bonding for Elec trical Systems.
L. Section 26 05 33, Raceway and Boxes for Electric al Systems.
M. Section 26 09 23, Lighting Controls.
N. Section 26 22 21, Specialty Transformers.
O. Section 26 27 26, Wiring Devices.
P. Section 26 29 11, Motor Starters.
Q. Section 27 15 00, Communications Horizontal Cabl ing.
R. Section 28 31 00, Fire Detection and Alarm.
1.3 DEFINITION
A. Algorithm: A logical procedure for solving a rec urrent mathematical problem; A prescribed set of well-defined rules or processes for the solution of a problem in a finite number of steps.
B. ARCNET: ANSI/ATA 878.1 - Attached Resource Compu ter Network. ARCNET is a deterministic LAN technology; meaning it's possib le to determine the maximum delay before a device is able to transmit a message.
23 09 23 - 7
C. Analog: A continuously varying signal value (e.g ., temperature, current, velocity etc.
D. BACnet: A Data Communication Protocol for Buildi ng Automation and
Control Networks , ANSI/ASHRAE Standard 135. This communications protocol allows diverse building automation devices to communicate data over and services over a network.
E. BACnet/IP: Annex J of Standard 135. It defines and allows for using a reserved UDP socket to transmit BACnet messages ove r IP networks. A
BACnet/IP network is a collection of one or more IP sub-networks that share the same BACnet network number.
F. BACnet Internetwork: Two or more BACnet networks connected with routers. The two networks may sue different LAN te chnologies.
G. BACnet Network: One or more BACnet segments that have the same network address and are interconnected by bridges at the ph ysical and data link layers.
H. BACnet Segment: One or more physical segments of BACnet devices on a
BACnet network, connected at the physical layer by repeaters.
I. BACnet Broadcast Management Device (BBMD): A com munications device which broadcasts BACnet messages to all BACnet/IP d evices and other
BBMDs connected to the same BACnet/IP network.
J. BACnet Interoperability Building Blocks (BIBBs): BACnet
Interoperability Building Blocks (BIBBs) are collec tions of one or more
BACnet services. These are prescribed in terms of a n "A" and a "B" device. Both of these devices are nodes on a BACnet internetwork.
K. BACnet Testing Laboratories (BTL). The organizat ion responsible for testing products for compliance with the BACnet sta ndard, operated under the direction of BACnet International.
L. Baud: It is a signal change in a communication l ink. One signal change can represent one or more bits of information depen ding on type of transmission scheme. Simple peripheral communicatio n is normally one bit per Baud. (e.g., Baud rate = 78,000 Baud/sec is 78,000 bits/sec, if one signal change = 1 bit).
M. Binary: A two-state system where a high signal l evel represents an "ON" condition and an "OFF" condition is represented by a low signal level.
N. BMP or bmp: Suffix, computerized image file, use d after the period in a
DOS-based computer file to show that the file is an image stored as a series of pixels.
23 09 23 - 8
O. Bus Topology: A network topology that physically interconnects workstations and network devices in parallel on a n etwork segment.
P. Control Unit (CU): Generic term for any controll ing unit, stand-alone, microprocessor based, digital controller residing o n secondary LAN or
Primary LAN, used for local controls or global cont rols
Q. Deadband: A temperature range over which no heat ing or cooling is supplied, i.e., 22-25 degrees C (72-78 degrees F), as opposed to a single point change over or overlap).
R. Device: a control system component that contains a BACnet Device Object and uses BACnet to communicate with other devices.
S. Device Object: Every BACnet device requires one Device Object, whose properties represent the network visible properties of that device.
Every Device Object requires a unique Object Identi fier number on the
BACnet internetwork. This number is often referred to as the device instance.
T. Device Profile: A specific group of services des cribing BACnet capabilities of a device, as defined in ASHRAE Stan dard 135-2008, Annex
L. Standard device profiles include BACnet Operato r Workstations (B-
OWS), BACnet Building Controllers (B-BC), BACnet Ad vanced Application
Controllers (B-AAC), BACnet Application Specific Co ntrollers (B-ASC), BACnet Smart Actuator (B-SA), and BACnet Smart Sens or (B-SS). Each device used in new construction is required to have a PICS statement listing which service and BIBBs are supported by th e device.
U. Diagnostic Program: A software test program, whi ch is used to detect and report system or peripheral malfunctions and fa ilures. Generally, this system is performed at the initial startup of the system.
V. Direct Digital Control (DDC): Microprocessor bas ed control including
Analog/Digital conversion and program logic. A cont rol loop or subsystem in which digital and analog information i s received and processed by a microprocessor, and digital control signals are generated based on control algorithms and transmitt ed to field devices in order to achieve a set of predefined conditions.
W. Distributed Control System: A system in which th e processing of system data is decentralized and control decisions can and are made at the subsystem level. System operational programs and in formation are provided to the remote subsystems and status is rep orted back to the
Engineering Control Center. Upon the loss of commun ication with the
23 09 23 - 9
Engineering Control center, the subsystems shall be capable of operating in a stand-alone mode using the last best available data.
X. Download: The electronic transfer of programs an d data files from a central computer or operation workstation with seco ndary memory devices to remote computers in a network (distributed) syst em.
Y. DXF: An AutoCAD 2-D graphics file format. Many C AD systems import and export the DXF format for graphics interchange.
Z. Electrical Control: A control circuit that opera tes on line or low voltage and uses a mechanical means, such as a temp erature sensitive bimetal or bellows, to perform control functions, s uch as actuating a switch or positioning a potentiometer.
AA. Electronic Control: A control circuit that oper ates on low voltage and uses a solid-state components to amplify input sign als and perform control functions, such as operating a relay or pro viding an output signal to position an actuator.
BB. Engineering Control Center (ECC): The centraliz ed control point for the intelligent control network. The ECC comprises of p ersonal computer and connected devices to form a single workstation.
CC. Ethernet: A trademark for a system for exchangi ng messages between computers on a local area network using coaxial, fi ber optic, or twisted-pair cables.
DD. Firmware: Firmware is software programmed into read only memory (ROM) chips. Software may not be changed without physical ly altering the chip.
EE. Gateway: Communication hardware connecting two or more different protocols. It translates one protocol into equivale nt concepts for the other protocol. In BACnet applications, a gateway h as BACnet on one side and non-BACnet (usually proprietary) protocols on the other side.
FF. GIF: Abbreviation of Graphic interchange format .
GG. Graphic Program (GP): Program used to produce i mages of air handler systems, fans, chillers, pumps, and building spaces . These images can be animated and/or color-coded to indicate operatio n of the equipment.
HH. Graphic Sequence of Operation: It is a graphica l representation of the sequence of operation, showing all inputs and outpu t logical blocks.
II. I/O Unit: The section of a digital control syst em through which information is received and transmitted. I/O refers to analog input
(AI, digital input (DI), analog output (AO) and dig ital output (DO).
23 09 23 - 10
Analog signals are continuous and represent tempera ture, pressure, flow rate etc, whereas digital signals convert electroni c signals to digital pulses (values), represent motor status, filter sta tus, on-off equipment etc.
JJ. I/P: a method for conveying and routing packets of information over LAN paths. User Datagram Protocol (UDP) conveys inform ation to “sockets” without confirmation of receipt. Transmission Contr ol Protocol (TCP) establishes "sessions", which have end-to-end confi rmation and guaranteed sequence of delivery.
KK. JPEG: A standardized image compression mechanis m stands for Joint
Photographic Experts Group, the original name of th e committee that wrote the standard.
LL. Local Area Network (LAN): A communication bus t hat interconnects operator workstation and digital controllers for pe er-to-peer communications, sharing resources and exchanging in formation.
MM. Network Repeater: A device that receives data p acket from one network and rebroadcasts to another network. No routing inf ormation is added to the protocol.
NN. MS/TP: Master-slave/token-passing (ISO/IEC 8802 , Part 3). It is not an acceptable LAN option for VA health-care facilities . It uses twisted-pair wiring for relatively low speed and low cost c ommunication.
OO. Native BACnet Device: A device that uses BACnet as its primary method of communication with other BACnet devices without intermediary gateways. A system that uses native BACnet devices at all levels is a native BACnet system.
PP. Network Number: A site-specific number assigned to each network segment to identify for routing. This network number must b e unique throughout the BACnet internetwork.
QQ. Object: The concept of organizing BACnet inform ation into standard components with various associated properties. Exam ples include analog input objects and binary output objects.
RR. Object Identifier: An object property used to i dentify the object, including object type and instance. Object Identifi ers must be unique within a device.
SS. Object Properties: Attributes of an object. Exa mples include present value and high limit properties of an analog input object. Properties are defined in ASHRAE 135; some are optional and so me are required.
23 09 23 - 11
Objects are controlled by reading from and writing to object properties.
TT. Operating system (OS): Software, which controls the execution of computer application programs.
UU. PCX: File type for an image file. When photogra phs are scanned onto a personal computer they can be saved as PCX files an d viewed or changed by a special application program as Photo Shop.
VV. Peripheral: Different components that make the control system function as one unit. Peripherals include monitor, printer, and I/O unit.
WW. Peer-to-Peer: A networking architecture that tr eats all network stations as equal partners- any device can initiate and respond to communication with other devices.
XX. PICS: Protocol Implementation Conformance State ment, describing the
BACnet capabilities of a device. All BACnet device s have published
PICS.
YY. PID: Proportional, integral, and derivative con trol, used to control modulating equipment to maintain a setpoint.
ZZ. Repeater: A network component that connects two or more physical segments at the physical layer.
AAA. Router: a component that joins together two or more networks using different LAN technologies. Examples include joinin g a BACnet Ethernet
LAN to a BACnet MS/TP LAN.
BBB. Sensors: devices measuring state points or flo ws, which are then transmitted back to the DDC system.
CCC. Thermostats : devices measuring temperatures, which are used in control of standalone or unitary systems and equipment not attached to the DDC system.
1.4 QUALITY ASSURANCE
A. Criteria:
1. Single Source Responsibility of subcontractor: T he Contractor shall obtain hardware and software supplied under this Se ction and delegate the responsibility to a single source cont rols installation subcontractor. The controls subcontractor shall be responsible for the complete design, installation, and commissionin g of the system.
The controls subcontractor shall be in the business of design, installation and service of such building automatio n control systems similar in size and complexity.
23 09 23 - 12
2. Equipment and Materials: Equipment and materials shall be cataloged products of manufacturers regularly engaged in prod uction and installation of HVAC control systems. Products shal l be manufacturer’s latest standard design and have been tested and proven in actual use.
3. The controls subcontractor shall provide a list of no less than five similar projects which have building control system s as specified in this Section. These projects must be on-line and fu nctional such that the Department of Veterans Affairs (VA) repres entative would observe the control systems in full operation.
4. The controls subcontractor shall have in-place f acility within 50 miles with technical staff, spare parts inventory f or the next five
(5) years, and necessary test and diagnostic equipm ent to support the control systems.
5. The controls subcontractor shall have minimum of three years experience in design and installation of building a utomation systems similar in performance to those specified in this S ection. Provide evidence of experience by submitting resumes of the project manager, the local branch manager, project engineer, the app lication engineering staff, and the electronic technicians w ho would be involved with the supervision, the engineering, and the installation of the control systems. Training and experience of these personnel shall not be less than three years. Failure to disc lose this information will be a ground for disqualification o f the supplier.
6. Provide a competent and experienced Project Mana ger employed by the
Controls Contractor. The Project Manager shall be s upported as necessary by other Contractor employees in order to provide professional engineering, technical and management service for the work. The Project Manager shall attend scheduled Pr oject Meetings as required and shall be empowered to make technical, scheduling and related decisions on behalf of the Controls Contrac tor.
B. Codes and Standards:
1. All work shall conform to the applicable Codes a nd Standards.
2. Electronic equipment shall conform to the requir ements of FCC
Regulation, Part 15, Governing Radio Frequency Elec tromagnetic
Interference, and be so labeled.
23 09 23 - 13
1.5 PERFORMANCE
A. The system shall conform to the following:
1. Graphic Display: The system shall display up to four (4) graphics on a single screen with a minimum of twenty (20) dynam ic points per graphic. All current data shall be displayed within ten (10) seconds of the request.
2. Graphic Refresh: The system shall update all dyn amic points with current data within eight (8) seconds. Data refresh shall be automatic, without operator intervention.
3. Object Command: The maximum time between the com mand of a binary object by the operator and the reaction by the devi ce shall be two(2) seconds. Analog objects shall start to adjus t within two (2) seconds.
4. Object Scan: All changes of state and change of analog values shall be transmitted over the high-speed network such tha t any data used or displayed at a controller or work-station will b e current, within the prior six (6) seconds.
5. Alarm Response Time: The maximum time from when an object goes into alarm to when it is annunciated at the workstation shall not exceed
(10) seconds.
6. Program Execution Frequency: Custom and standard applications shall be capable of running as often as once every (5) se conds. The
Contractor shall be responsible for selecting execu tion times consistent with the mechanical process under contro l.
7. Multiple Alarm Annunciations: All workstations o n the network shall receive alarms within five (5) seconds of each othe r.
8. Performance: Programmable Controllers shall be a ble to execute DDC
PID control loops at a selectable frequency from at least once every one (1) second. The controller shall scan and updat e the process value and output generated by this calculation at t his same frequency.
9. Reporting Accuracy: Listed below are minimum acc eptable reporting end-to-end accuracies for all values reported by th e specified system:
23 09 23 - 14
Measured Variable Reported Accuracy
Space temperature ±0.5 °C (±1 °F)
Ducted air temperature ±0.5 °C [±1 °F]
Outdoor air temperature ±1.0 °C [±2 °F]
Dew Point ±1.5 °C [±3 °F]
Water temperature ±0.5 °C [±1 °F]
Relative humidity ±2% RH
Water flow ±1% of reading
Air flow (terminal) ±10% of reading
Air flow (measuring stations) ±5% of reading
Air pressure (ducts) ±25 Pa [±0.1"w.c.]
Air pressure (space) ±0.3 Pa [±0.001"w.c.]
Water pressure ±2% of full scale *Note 1
Electrical Power ±0.5% of reading
Note 1: for both absolute and differential pressure
10. Control stability and accuracy: Control sequenc es shall maintain measured variable at setpoint within the following tolerances:
Controlled Variable Control Accuracy Range of Medium
Air Pressure ±50 Pa (±0.2 in. w.g.)
0–1.5 kPa (0–6 in. w.g.)
Air Pressure ±3 Pa (±0.01 in. w.g.) -25 to 25 Pa (-0.1 to 0.1 in. w.g.)
Airflow ±10% of full scale
Space Temperature ±1.0ºC (±2.0ºF)
Duct Temperature ±1.5ºC (±3ºF)
Humidity ±5% RH
Fluid Pressure ±10 kPa (±1.5 psi)
0–1 MPa (1–150 psi)
Fluid Pressure ±250 Pa (±1.0 in. w.g.) 0–12.5 kPa (0–50 in. w.g.)
differential
11. Extent of direct digital control: control desig n shall allow for at least the points indicated on the points lists on t he drawings.
1.6 WARRANTY
A. Labor and materials for control systems shall be warranted for a period as specified under Warranty in FAR clause 52.246-21 .
23 09 23 - 15
B. Control system failures during the warranty peri od shall be adjusted, repaired, or replaced at no cost or reduction in se rvice to the owner.
The system includes all computer equipment, transmi ssion equipment, and all sensors and control devices.
C. Controls and Instrumentation subcontractor shall be responsible for temporary operations and maintenance of the control systems during the construction period until final commissioning, trai ning of facility operators and acceptance of the project by VA.
1.7 SUBMITTALS
A. Submit shop drawings in accordance with Section 01 33 23, SHOP
DRAWINGS, PRODUCT DATA, AND SAMPLES.
B. Manufacturer’s literature and data for all compo nents including the following:
1. A wiring diagram for each type of input device a nd output device including DDC controllers, modems, repeaters, etc. Diagram shall show how the device is wired and powered, showing t ypical connections at the digital controllers and each pow er supply, as well as the device itself. Show for all field conne cted devices, including but not limited to, control relays, motor starters, electric or electronic actuators, and temperature p ressure, flow and humidity sensors and transmitters.
2. A diagram of each terminal strip, including digi tal controller terminal strips, terminal strip location, terminati on numbers and the associated point names.
3. Control dampers and control valves schedule, inc luding the size and pressure drop.
4. Control air-supply components, and computations for sizing compressors, receivers and main air-piping, if pneu matic controls are furnished.
5. Catalog cut sheets of all equipment used. This i ncludes, but is not limited to software (by manufacturer and by third p arties), DDC controllers, panels, peripherals, airflow measuring stations and associated components, and auxiliary control device s such as sensors, actuators, and control dampers. When manuf acturer’s cut sheets apply to a product series rather than a spec ific product, the data specifically applicable to the project shall b e highlighted.
Each submitted piece of literature and drawings sho uld clearly
23 09 23 - 16 reference the specification and/or drawings that it supposed to represent.
6. Sequence of operations for each HVAC system and the associated control diagrams. Equipment and control labels shal l correspond to those shown on the drawings.
7. Color prints of proposed graphics with a list of points for display.
8. Furnish a BACnet Protocol Implementation Conform ance Statement
(PICS) for each BACnet-compliant device.
9. Schematic wiring diagrams for all control, commu nication and power wiring. Provide a schematic drawing of the central system installation. Label all cables and ports with compu ter manufacturers’ model numbers and functions. Show al l interface wiring to the control system.
10. An instrumentation list for each controlled sys tem. Each element of the controlled system shall be listed in table form at. The table shall show element name, type of device, manufactur er, model number, and product data sheet number.
11. Riser diagrams of wiring between central contro l unit and all control panels.
12. Scaled plan drawings showing routing of LAN and locations of control panels, controllers, routers, gateways, ECC, and la rger controlled devices.
13. Construction details for all installed conduit, cabling, raceway, cabinets, and similar. Construction details of all penetrations and their protection.
14. Quantities of submitted items may be reviewed b ut are the responsibility of the contractor administered by th is Section of the technical specifications.
C. Product Certificates: Compliance with Article, Q UALITY ASSURANCE.
D. Licenses: Provide licenses for all software resi ding on and used by the
Controls Systems and transfer these licenses to the Owner prior to completion.
E. As Built Control Drawings:
1. Furnish three (3) copies of as-built drawings fo r each control system. The documents shall be submitted for approv al prior to final completion.
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2. Furnish one (1) stick set of applicable control system prints for each mechanical system for wall mounting. The docum ents shall be submitted for approval prior to final completion.
3. Furnish one (1) CD-ROM in CAD DWG and/or .DXF fo rmat for the drawings noted in subparagraphs above.
F. Operation and Maintenance (O/M) Manuals):
1. Submit in accordance with Article, INSTRUCTIONS, in Specification
Section 01 00 00, GENERAL REQUIREMENTS.
2. Include the following documentation:
a. General description and specifications for all c omponents, including logging on/off, alarm handling, producing trend reports, overriding computer control, and changing set points and other variables.
b. Detailed illustrations of all the control system s specified for ease of maintenance and repair/replacement procedur es, and complete calibration procedures.
c. One copy of the final version of all software pr ovided including operating systems, programming language, operator w orkstation software, and graphics software.
d. Complete troubleshooting procedures and guidelin es for all systems.
e. Complete operating instructions for all systems.
f. Recommended preventive maintenance procedures fo r all system components including a schedule of tasks for inspec tion, cleaning and calibration. Provide a list of recommended spar e parts needed to minimize downtime.
g. Training Manuals: Submit the course outline and training material to the Owner for approval three (3) weeks prior to the training to VA facility personnel. These persons will be res ponsible for maintaining and the operation of the control system s, including programming. The Owner reserves the right to modify any or all of the course outline and training material.
h. Licenses, guaranty, and other pertaining documen ts for all equipment and systems.
G. Submit Performance Report to Resident Engineer p rior to final inspection.
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1.8 INSTRUCTIONS
A. Instructions to VA operations personnel: Perform in accordance with
Article, INSTRUCTIONS, in Specification Section 01 00 00, GENERAL
REQUIREMENTS, and as noted below. Contractor shall also video tape instruction sessions noted below.
1. First Phase: Formal instructions to the VA faciliti es personnel for a total of 32 hours, given in multiple training ses sions (each no longer than four hours in length), conducted someti me between the completed installation and prior to the performance test period of the control system, at a time mutually agreeable to the Contractor and the VA.
2. Second Phase: This phase of training shall comprise of on the job training during start-up, checkout period, and perf ormance test period. VA facilities personnel will work with the Contractor’s installation and test personnel on a daily basis du ring start-up and checkout period. During the performance test period , controls subcontractor will provide 32 hours of instructions , given in multiple training sessions (each no longer than fou r hours in length), to the VA facilities personnel.
3. The O/M Manuals shall contain approved submittals a s outlined in
Article 1.7, SUBMITTALS. The Controls subcontractor will review the manual contents with VA facilities personnel during second phase of training.
4. Training shall be given by direct employees of the controls system subcontractor.
1.9 PROJECT CONDITIONS (ENVIRONMENTAL CONDITIONS OF OPERATION)
A. The ECC and peripheral devices and system suppor t equipment shall be designed to operate in ambient condition of 20 to 3 5°C (65 to 90 °F) at a relative humidity of 20 to 80% non-condensing.
B. The CUs used outdoors shall be mounted in NEMA 4 waterproof enclosures, and shall be rated for operation at –40 to 65 °C (-40 to 150 °F).
C. All electronic equipment shall operate properly with power fluctuations of plus 10 percent to minus 15 percent of nominal s upply voltage.
D. Sensors and controlling devices shall be designe d to operate in the environment, which they are sensing or controlling.
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1.10 APPLICABLE PUBLICATIONS
A. The publications listed below form a part of thi s specification to the extent referenced. The publications are referenced in the text by the basic designation only.
B. American Society of Heating, Refrigerating, and Air-Conditioning
Engineers (ASHRAE):
Standard 135-10.........BACNET Building Automation and Control Networks
C. American Society of Mechanical Engineers (ASME):
B16.18-01...............Cast Copper Alloy Solder Jo int Pressure Fittings.
B16.22-01...............Wrought Copper and Copper A lloy Solder Joint
Pressure Fittings.
D. American Society of Testing Materials (ASTM):
B32-08..................Standard Specification for Solder Metal B88-09..................Standard Specifications for Seamless Copper
Water Tube B88M-09.................Standard Specification for Seamless Copper
Water Tube (Metric) B280-08.................Standard Specification for Seamless Copper Tube for Air-Conditioning and Refrigeration Field Service
D2737-03................Standard Specification for Polyethylene (PE) Plastic Tubing
E. Federal Communication Commission (FCC):
Rules and Regulations Title 47 Chapter 1-2001 Part 15: Radio Frequency Devices.
F. Institute of Electrical and Electronic Engineers (IEEE):
802.3-11................Information Technology-Tele communications and Information Exchange between Systems-Local and Metropolitan Area Networks- Specific Requirements-Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access method and Physical Layer Specifications
G. National Fire Protection Association (NFPA):
70-11...................National Electric Code 90A-09..................Standard for Installation o f Air-Conditioning and Ventilation Systems H. Underwriter Laboratories Inc (UL):
94-10...................Tests for Flammability of P lastic Materials for Parts and Devices and Appliances
294-10..................Access Control System Units 486A/486B-10............Wire Connectors 555S-11.................Standard for Smoke Dampers 916-10..................Energy Management Equipment 1076-10.................Proprietary Burglar Alarm U nits and Systems
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PART 2 - PRODUCTS
2.1 MATERIALS
A. Use new products that the manufacturer is curren tly manufacturing and that have been installed in a minimum of 25 install ations. Spare parts shall be available for at least five years after co mpletion of this contract.
2.2 CONTROLS SYSTEM ARCHITECTURE
A. General
1. The Controls Systems shall consist of multiple N odes and associated equipment connected by industry standard digital an d communication network arrangements.
2. The ECC, building controllers and principal comm unications network equipment shall be standard products of recognized major manufacturers available through normal PC and compu ter vendor channels – not "Clones" assembled by a third-party subcontractor.
3. The networks shall, at minimum, comprise, as nec essary, the following:
a. A fixed ECC and a portable operator’s terminal.
b. Network computer processing, data storage and BA Cnet-compliant communication equipment including Servers and digit al data processors.
c. BACnet-compliant routers, bridges, switches, hub s, modems, gateways, interfaces and similar communication equi pment.
d. Active processing BACnet-compliant building cont rollers connected to other BACNet-compliant controllers together with their power supplies and associated equipment.
e. Addressable elements, sensors, transducers and e nd devices.
f. Third-party equipment interfaces and gateways as described and required by the Contract Documents.
g. Other components required for a complete and wor king Control
Systems as specified.
B. The Specifications for the individual elements a nd component subsystems shall be minimum requirements and shall be augmente d as necessary by the Contractor to achieve both compliance with all applicable codes, standards and to meet all requirements of the Contr act Documents.
C. Network Architecture
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1. The Controls communication network shall utilize BACnet communications protocol operating over a standard E thernet LAN and operate at a minimum speed of 100 Mb/sec.
2. The networks shall utilize only copper and optic al fiber communication media as appropriate and shall comply with applicable codes, ordinances and regulations.
3. All necessary telephone lines, ISDN lines and in ternet Service
Provider services and connections will be provided by the VA.
D. Third Party Interfaces:
1. The contractor administered by this Section of t he technical specifications shall include necessary hardware, eq uipment, software and programming to allow data communications betwee n the controls systems and building systems supplied by other trad es.
2. Other manufacturers and contractors supplying ot her associated systems and equipment shall provide their necessary hardware, software and start-up at their cost and shall coope rate fully with the contractor administered by this Section of the technical specifications in a timely manner and at their cost to ensure complete functional integration.
E. Servers:
1. Provide data storage server(s) to archive histor ical data including trends, alarm and event histories and transaction l ogs.
2. Equip these server(s) with the same software too l set that is located in the BACnet building controllers for syst em configuration and custom logic definition and color graphic confi guration.
3. Access to all information on the data storage se rver(s) shall be through the same browser functionality used to acce ss individual nodes. When logged onto a server the operator will be able to also interact with any other controller on the control s ystem as required for the functional operation of the controls system s. The contractor administered by this Section of the tech nical specifications shall provide all necessary digital processor programmable data storage server(s).
4. These server(s) shall be utilized for controls s ystems application configuration, for archiving, reporting and trendin g of data, for operator transaction archiving and reporting, for n etwork information management, for alarm annunciation, for operator
23 09 23 - 22 interface tasks, for controls application managemen t and similar.
These server(s) shall utilize IT industry standard data base platforms which utilize a database declarative lang uage designed for managing data in relational database management sys tems (RDBMS) such as SQL.
2.3 COMMUNICATION
A. Control products, communication media, connector s, repeaters, hubs, and routers shall comprise a BACnet internetwork. Contr oller and operator interface communication shall conform to ANSI/ASHRA E Standard 135-2008, BACnet.
1. The Data link physical layer protocol (for commu nication) acceptable to the VA throughout its facilities is Ethernet (IS O 8802-3) and
BACnet/IP.
B. Each controller shall have a communication port for connection to an operator interface.
C. Project drawings indicate remote buildings or si tes to be connected by a nominal 56,000 baud modem over voice-grade teleph one lines. In each remote location a modem and field device connection shall allow communication with each controller on the internetw ork as specified in
Paragraph D.
D. Internetwork operator interface and value passin g shall be transparent to internetwork architecture.
1. An operator interface connected to a controller shall allow the operator to interface with each internetwork contro ller as if directly connected. Controller information such as data, status, reports, system software, and custom programs shall be viewable and editable from each internetwork controller.
2. Inputs, outputs, and control variables used to i ntegrate control strategies across multiple controllers shall be rea dable by each controller on the internetwork. Program and test a ll cross-controller links required to execute specified cont rol system operation. An authorized operator shall be able to edit cross-controller links by typing a standard object addres s.
E. System shall be expandable to at least twice the required input and output objects with additional controllers, associa ted devices, and wiring. Expansion shall not require operator interf ace hardware additions or software revisions.
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F. ECCs and Controllers with real-time clocks shall use the BACnet Time
Synchronization service. The system shall automatic ally synchronize system clocks daily from an operator-designated dev ice via the internetwork. The system shall automatically adjust for daylight savings and standard time as applicable.
2.6 BACNET PROTOCOL ANALYZER
A. For ease of troubleshooting and maintenance, pro vide a BACnet protocol analyzer. Provide its associated fittings, cables and appurtenances, for connection to the communications network. The BACnet protocol analyzer shall be able to, at a minimum: capture an d store to a file all data traffic on all network levels; measure ban dwidth usage; filter out (ignore) selected traffic.
2.7 NETWORK AND DEVICE NAMING CONVENTION
A. Network Numbers
1. BACnet network numbers shall be based on a "faci lity code, network" concept. The "facility code" is the VAMC’s or VA ca mpus’ assigned numeric value assigned to a specific facility or bu ilding. The
"network" typically corresponds to a "floor" or oth er logical configuration within the building. BACnet allows 65 535 network numbers per BACnet internet work.
2. The network numbers are thus formed as follows: "Net #" = "FFFNN" where:
a. FFF = Facility code (see below)
b. NN = 00-99 This allows up to 100 networks per fa cility or building
B. Device Instances
1. BACnet allows 4194305 unique device instances pe r BACnet internet work. Using Agency's unique device instances are fo rmed as follows:
"Dev #" = "FFFNNDD" where
a. FFF and N are as above and
b. DD = 00-99, this allows up to 100 devices per ne twork.
2. Note Special cases, where the network architectu re of limiting device numbering to DD causes excessive subnet work s. The device number can be expanded to DDD and the network numbe r N can become a single digit. In NO case shall the network number N and the device number D exceed 4 digits.
3. Facility code assignments:
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4. 000-400 Building/facility number
5. Note that some facilities have a facility code w ith an alphabetic suffix to denote wings, related structures, etc. Th e suffix will be ignored. Network numbers for facility codes above 4 00 will be assigned in the range 000-399.
C. Device Names
1. Name the control devices based on facility name, location within a facility, the system or systems that the device mon itors and/or controls, or the area served. The intent of the dev ice naming is to be easily recognized. Names can be up to 254 charac ters in length, without embedded spaces. Provide the shortest descr iptive, but unambiguous, name. For example, in building #123 pr efix the number with a “B” followed by the building number, if ther e is only one chilled water pump "CHWP-1", a valid name would be "B123.CHWP.
1.STARTSTOP". If there are two pumps designated "CH WP-1", one in a basement mechanical room (Room 0001) and one in a p enthouse mechanical room (Room PH01), the names could be "B1 23.R0001.CHWP.1.
STARTSTOP" or "B123.RPH01.CHWP.1.STARTSTOP". In the case of unitary controllers, for example a VAV box controller, a na me might be
"B123.R101.VAV". These names should be used for the value of the
"Object_Name" property of the BACnet Device objects of the controllers involved so that the BACnet name and th e EMCS name are the same.
2.8 BACNET DEVICES
A. All BACnet Devices – controllers, gateways, rout ers, actuators and sensors shall conform to BACnet Device Profiles and shall be BACnet
Testing Laboratories (BTL) -Listed as conforming to those Device
Profiles. Protocol Implementation Conformance Stat ements (PICSs), describing the BACnet capabilities of the Devices s hall be published and available of the Devices through links in the B TL website.
1. BACnet Building Controllers, historically referr ed to as NACs, shall conform to the BACnet B-BC Device Profile, and shal l be BTL-Listed as conforming to the B-BC Device Profile. The Devi ce’s PICS shall be submitted.
2. BACnet Advanced Application Controllers shall co nform to the BACnet
B-AAC Device Profile, and shall be BTL-Listed as co nforming to the
B-AAC Device Profile. The Device’s PICS shall be s ubmitted.
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3. BACnet Application Specific Controllers shall co nform to the BACnet
B-ASC Device Profile, and shall be BTL-Listed as co nforming to the
B-ASC Device Profile. The Device’s PICS shall be s ubmitted.
4. BACnet Smart Actuators shall conform to the BACn et B-SA Device
Profile, and shall be BTL-Listed as conforming to t he B-SA Device
Profile. The Device’s PICS shall be submitted.
5. BACnet Smart Sensors shall conform to the BACnet B-SS Device
Profile, and shall be BTL-Listed as conforming to t he B-SS Device
Profile. The Device’s PICS shall be submitted.
6. BACnet routers and gateways shall conform to the BACnet B-OTH Device
Profile, and shall be BTL-Listed as conforming to t he B-OTH Device
Profile. The Device’s PICS shall be submitted.
2.9 CONTROLLERS
A. General. Provide an adequate number of BTL-Listed B -BC building controllers and an adequate number of BTL-Listed B- AAC advanced application controllers to achieve the performance specified in the
Part 1 Article on “System Performance.” Each of the se controllers shall meet the following requirements.
1. The controller shall have sufficient memory to supp ort its operating system, database, and programming requirements.
2. The building controller shall share data with the E CC and the other networked building controllers. The advanced appli cation controller shall share data with its building controller and t he other networked advanced application controllers.
3. The…
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